Mechanism for automatically fastening or locking a series of drawers



(No Model.)

A. B. BRUNDRETT.

MECHANISM FOR AUTOMATIGALLY FASTENING 0R LOOKING A SERIES OF DRAWERS. I

No 256,119 Patented Apr. 1 1, 1882.

N. PETERS. Photo-Lithographer Wnhington. 0.1:.

" UNITED STATES,

PATENT Orrrcn.

ALEXANDER B. BRUNDRETT, OFDAYTON, OHIO.

MECHANISM FOR AUTOMATICALLY FASTENINGOR LOCKING A SERIES OF DRAWERSL SPECIFICATION forming part of Letterslatent No. 256,119, dated April 11, 1882.

Application filed May 21, 1881. (No modGl.)

To all whom it may concern Be it known that I, ALEXANDER B. BRUN- DRETT, acitizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented a new and usefullmprovementin Mechanism for Automatically Fastening or Locking One or a Series of Drawers, of which the following is a specification.

My invention relates to an improved looking device by which one or a series of drawers are locked by a sliding top carrying backward a pivotal cogged lever, which engages a cogged thimble attached to a horizontal shaft,

the said shaft having projections which engage a mortise or notch in the side of the drawer. When the top is fastened the drawers are securely locked, and when unfastened and slightly drawn out the drawers are unlocked. The

mechanism by which the locking is effected is illustrated in the accompanying drawings, in which Figure 1 is a transverse vertical section of the same on the line was. Fig.2 is'a top view 01 plan of the locking device.

The device is well adapted for a book-case having a doublerow of drawers, one series at each side. The block E is attached to the under side of the sliding top A, and will serve to 0 fasten both series.

Instead of the sliding top, a sliding bar or other device may be used for carrying back the end of the lever or levers for the purpose of locking the drawers. 1

5 B represents the usual form 'of-drawer, supshaft (1, supported in suitable bearings at top and bottom. Pins 0 are attached to the shaft, which enternotches in the sides of the drawers, as illustrated in Fig. 2. The cogged thimble n is firmly attached to the shaft, and this engages cogs ot' the lever F. This lever is supported on the pin .r, or otherwise, at the rear of the partition I), within a mortise of the same. 7 v

A, Fig. 2, represents but the outline of the sliding top, and the dotted lines at E represent the block which engages the end of the lever.

The essential features of the invention are the pivotal cogged lever, the cogged thimble, the shaft and its projections to engage inortises of the drawers, and any suitable slide to carry back and hold the lever in position.

The operation of locking the drawers is effected by carrying the end of the lever back. This causes a partial rotation of the shat't,which carries the projections into notches of the drawers, and they are thus secured. Nhen the lever is released by pulling out one of the series all are released, the said lever being held by the slide, which is held in position by an ordinary lock.

Having fully described my invention, what I regard as my invention, and desire to secure by Letters Patent, is-

The pivotal cogged lever F, cogged sleeve n, and shaft 0, with projections o,in combination with cabinet-drawers and sliding top provided with block E, substantially as set forth.

ALEXANDER B. BRUNDRETT.

Witnesses:

B. PIOKERING, ALLEN L. MARsrIALL. 

